Skip to content
Order before 3pm, Monday to Friday, for next-working-day dispatch on in-stock items*
Courier networks run at peak load in December. We will always try to dispatch same day.
We appreciate your business throughout the year.
Availability:
12 in stock
Save £50.06 Save £50.06

£86.21 (Excl. VAT)

Current price - £103.45 (Inc. VAT)
£86.21 - £86.21
Current price- - £103.45
Availability:
12 in stock
  • Visa
  • Mastercard
  • American Express
  • Apple Pay
  • Google Pay
  • Paypal
  • Shop Pay
  • Klarna
  • Bank Transfer (BACS)
Trade pricing for verified resellers, proforma issued on official company letterhead for PO processing.
Education & Public Sector Pricing available for schools, universities, NHS, and government organisations. Contact our Public Sector Team on 020 8191 9223 or email info@screenmoove.com.
  • Description
  • Specifications
  • Downloads
  • StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable

    The ST121SHD50 HDMI® over Cat5e/Cat6 Video Extender kit lets you extend HDMI video and audio by up to 165 feet (50 Meters) over dual Cat5e cables or dual Cat6 cables. For added versatility the kit features Power Over Cable and only requires a single power adapter that can be connected to either the Transmitter or Receiver.

    With support for High-Definition resolutions of up to 1920x1080 / 1080p and the accompanying digital audio, this cost-effective HD extender can easily be installed using new or existing Ethernet infrastructure wiring. For a convenient plug-and-play installation, the HDMI extender features built-in EDID monitor emulation, which ensures native resolution and maximum compatibility with your display or projector.


    For added flexibility and convenience, HDMI cables up to 32ft (10m) can be connected to both the local and remote units, which lets you extend your HDMI signal to even further distances.

    The HDMI extender kit offers a point-to-point digital signage solution right out of the box, including both local transmitter and remote receiver units, along with optional hardware that lets you mount the units as needed. Plus, with Power Over Cable, you can easily extend an HDMI signal in areas where access to power outlets is limited.

    This product is TAA compliant and backed by a Startech.com 2-year warranty with free lifetime technical support.

    Applications
    Extend HDMI when power outlets are limited, with only a single power adapter required at either the Transmitter or Receiver using Power Over Cable
    Place the display in a convenient viewing area, while the system equipment is placed elsewhere in a clean and secure environment
    Optimize placement of digital signage in healthcare, education, retail, and government facilities

  • Category Specification
    Warranty 2 Years
    Local Unit Connectors 1 - HDMI (19 pin)
    2 - RJ-45
    Remote Unit Connectors 1 - HDMI (19 pin)
    2 - RJ-45
    Operating Temperature 0°C to 40°C (32°F to 104°F)
    Storage Temperature -10°C to 60°C (14°F to 115°F)
    Humidity 0% - 80%
    Ports 1
    Cabling Cat 5 UTP or better
    Audio Yes
    Rack-Mountable Yes
    Daisy-Chain No
    LED Indicators 1 - Power
    Package Height 6.6 cm [2.6 in]
    Package Length 23.6 cm [9.3 in]
    Shipping Weight 0.9 kg [2.0 lb]
    Package Width 15.6 cm [6.1 in]
    Package Quantity 1
    Max Distance 50m [164ft]
    Maximum Digital Resolutions 1080p / 1920x1080
    Supported Resolutions 1080i
    Wide Screen Supported Yes
    Maximum Distances (1080i) CAT5E (stranded) - 40m (130 ft)
    CAT5E (solid) - 50m (165 ft)
    CAT6 (stranded or solid) - 50m (165 ft)
    Weight of Product 314.0 g [11.1 oz]
    Color Black
    Material Aluminum
    Product Length 8.0 cm [3.1 in]
    Product Width 5.1 cm [2.0 in]
    Product Height 2.1 cm [0.8 in]
    Power Source AC Adapter Included
    Input Voltage 100 - 240 AC
    Input Current 0.5 A
    Output Voltage 12V DC
    Output Current 1.5 A
    Center Tip Polarity Positive
    Plug Type M
    Power Consumption 18 Watts
    Special Notes / Requirements Requires two CAT5 cables for full distance. Does not work through Ethernet equipment like switches or routers.
    Included in Package 1 - HDMI over CAT5e/6 UTP transmitter
    1 - HDMI over CAT5e/6 UTP receiver
    1 - Universal power adapter (NA / EU / UK / AU)
    2 - Mounting brackets
    2 - Foot pad set
    1 - Instruction manual
  • Description Downloads
    Datasheet Downloads
    Manual Downloads
StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable | ST121SHD50
StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable | ST121SHD50
SKU: ST121SHD50
🚚 Order before 3PM, get it by tomorrow.
StarTech HDMI Over CAT5e/CAT6 Extender with Power Over Cable | ST121SHD50
SKU: ST121SHD50
🚚 Order before 3PM, get it by tomorrow.

Book a Free Product Demo

Remote or on-site. No obligation.

Integrator or Installer?

Trade pricing, volume discounts, same-day collection.

Request a Trade Account

Education & Public Sector Solutions

Exclusive pricing, flexible terms, and dedicated support for schools, universities, NHS, and government organisations.

Official Purchase Orders We accept formal POs with VAT-compliant invoicing for all verified institutions.
Contract & Volume Discounts Competitive rates for multi-site, long-term, or framework-based deployments.
Dedicated Account Management Single point of contact for lead times, coordination, and sourcing.
Flexible 30-Day Terms Available to verified schools, councils, and government bodies.
Next-Day Delivery

Same-day shipping

Trade Account

Trade account available

Trusted Customers

See Our Latest Reviews

Public Sector Friendly

We Accept Purchase Orders

Have more questions ? Talk to our experts...

Need help choosing the right product?

Need help choosing the right product?

Speak directly with a dedicated Screen Moove expert and get the right solution, first time.

Call us on: 020 8191 9223
Email us: info@screenmoove.com

Contact us

Simply complete our contact form, and we will promptly respond to your inquiries.

If you have any questions or enquiry, please fill out the form below with all of your details and we'll get back to you shortly.